Shaver



July 12, 1938 H. c. MCCANN SHAVER Filed Oct. 12, 1936 INVENTOR. fibn amMas/er M7000 Patented July 12, 1938 UNITED STATES PATENT OFFICE,

Application October 12, 1936, Serial No. 105,247

10 Claims.

My invention relates to a shaver to take the place of a razor forshaving hair, and the objects of my invention are:

First, to provide a rotary blade shaver which is operated by a pre-woundspring;

Second, to provide a .shaver of this class with governor means forregulating speed of the shaving blade;

Third, to provide brake means in connection with the governor forholding the shaving blade against rotation;

Fourth, to provide a shaver of this class in which the hairs may beefliciently removed without the use of lather;

Fifth, to provide a shaver of this class which is manually operated andpropelled;

Sixth, to provide a shaver of this class within which the shaved hairsmay be retained, and from within which said hairs may be readilyremoved;

Seventh, to provide a shaver of this class which is very simple ofconstruction and operation, efiicient, durable, and which will notreadily deteriorate or get out of order. a

With these and other objects in view as will appear hereinafter,- myinvention consists of certain novel features of construction,combination, and arrangement of parts and portions as will behereinafter described in detail and par ticularly set forth in theappended claims, reference being bad to the accompanying drawing and tothe characters of reference thereon which form a part of thisapplication in which:

Figure 1 is a longitudinal sectional view of my shaver showing some ofthe parts in elevation to facilitate the illustration; Fig. 2 is anenlarged fragmentary sectional view; Fig. 3 is a transverse sectionalview from the line 3-3 of Fig. 2; Fig. 4 is an end view from the line4-4 of Fig. 2; Fig. 5 is a transverse sectional view from the line 5-5of Fig. 2 and Fig. 6 is a transverse sectional view from the line 6-6 ofFig. 2.,

Similar characters of reference refer to similar parts and portionsthroughout the several views of the drawing.

The tubular casing l, tubular casing end caps 2 and 3, revoluble blade4, shaft 5, partition and journal 6, brake disk I, brake latch 8,governor members 9, operating spring l ratchet wheel ll, ratchet pawlsl2, and winding key l3 constitute the principal parts and portions of myshaver.

The casing l is a tubular member externally threaded at its oppositeends at In. and lb. Mounted over the threads la is an internallythreaded end cap 2, the threaded portion 2a engaging threads la. It willbe noted that the threaded portion 2a of cap 2 is of greater internaldiameter than the rest of said cap 2. At 211 the cap 2 is reduced ininternal diameter so as to provide ashoulder to secure partition 6rigidly in position between said shoulder and lugs lb when the capmember 2 is screwed onto threads la. This cap member 2 is provided witha relatively thin end covering portion 20 which is provided with aplurality of outwardly curved 10 openings 2d as shown best in Figs. 3and 4 of the drawing. Mounted against this inner surface and adapted torevolve against the inner surface of the. member 20 is a revoluble blade4 which is made with a plurality of extended blade portions 411. In thiscase I have shown four which are provided with sharpened edges which areadapted to engage hair which extends through the slots 2d in the endmember 2 and shear the same with the revolution of the blade 4. Thisblade I is secured on the end of the shaft 5 which is the drive shaftfor the blade 4 by means of screw threads Ad. This shaft 5 is enlargedat 50 for forming a journal within a 'central opening 6a in thepartition and journal 6. The shaft 5 is provided with a square portion5b extending some distance from the enlarged portion 5a, and secured tothe four sides of this shaft near the enlarged portion 5a are a plu--rality of governor members 9 provided with weights 9a tending to drawthe brake disk 1 toward the blade 4 by centrifugal force so that when acertain speed is attained, this disk I engages the brake latch 8 at oneside for reducing the speed of the shaft and thereby the razor blade 4,the disk 'I being secured to the extended ends 9b of the governormembers 9 provided with a square portion which is shifted longitudinallyon the square portion 5b of the shaft 5. The brake latch 8 is shiftablelongi- 40 tudinally on the tube 2 and is provided with a tightfrictional fit so that it may be shifted to various positions relativelyto the disk 'I for providing a predetermined speed of the shaf andthereby the blade 4. This latch also "provides means for causing a brakewhile winding the shaver which is accomplished by shifting the latch 8against the disk I and thereby provides a brake to prevent the shaft 5,from turning when desired. Secured to the shaft 5 backwardly from thesquare portion 51) is the one end of the operating spring Ill which is atorsion spring, and the opposite end is secured to the hub Ha of theratchet wheel II, and the backward end of the 55 shaft 5 is revolublymounted in this hub portion Ila so that the spring I 0 may be woundaround the shaft 5.

The ratchet wheel H is supported on the inside of the cap 3 which isscrew-threaded on the threads lb on the tubular casing I. This 7 cap 3is provided with a central opening 3a which receives the extended end ofa reduced portion lib of the ratchet wheel II. This reduced portion III)is threaded at its extended end He and on which is secured the windingkey 13, it being noted that the winding key is screw threaded to theends of the threads on the member llb.

Mounted for engagement with the ratchet wheel II are a plurality ofratchet pawls I! which are adapted to engage the ratchet teeth llc onthe ratchet wheel ll, thus providing ratchet means for holding thespring in certain relation with the shaft so that it may be wound asdesired. While winding the spring by means of the key I 3, the disk 1 isheld by the shifting of the latch 8 against said disk forming a brakeagainst the movement of the shaft.

Around the exterior of the cap member 2 and shiftably positioned withingroove 2e is a slip ring 2!. The cap member 2 is provided with fourcircular openings and the slip ring 2} is also provided with fourconforming circular openings as seen best in Figs. 2 and 3. It is to behere noted that the cap member 2 and the partition 6 form a chamberWithin which is retained the sheared hairs and that by shifting the slipring 2 to the position shown in Figs. 2 and 3 that the hairs may beemptied without removing the cap 2.

The operation of my shaver is as follows: The shaver is prepared foroperation by winding the spring l0 around the shaft 5 by turning the keyl3 until the spring J0 is tightly wound, the latch 8 being shiftedagainst the disk 1 to prevent the shaft from turning. Then the latch 8is shifted a certain predetermined distance from the disk 1 and theshaft 5 is revolved by the spring 10 carrying with it the blade 4. Theouter surface of the member 2 is placed against the surface to be shavedand the hairs extend through the slots 2d and are sheared by therotating blades 4a. The speed of the rotating blades is regulated by thegovernor drawing the disk I against the latch 8. The sheared hairs willgo into the cap member 2 between the partition 6 and the blade 4 and maybe removed from time to time by means of slip ring 2).

Though I have shown and described a particular construction,combination, and arrangement of parts and portions, I do not wish to belimited to this particular construction, combination, and arrangement,but desire to include in the scope of my invention the construction,

combination, and arrangement substantially as set forth in the appendedclaims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a shaver, a tubular. casing member provided with a plurality ofradiating various length curved slots at one end, a shaving blade with aplurality of radiating shearing members revolubly mounted against theinside of said end, and a torsion spring in connection with said rotorblade for tending to turn the same.

2. In a shaver, a tubular casing member provided with a plurality ofradiating various length curved slots at one end, a shaving blade with aplurality of radiating shearing members revolubly mounted against theinside of said end, a torsion spring in connection with said rotor bladefor tending to turn the same, and means extending outwardly of saidcasing for winding said spring relatively to said blade.

3. In a shaver, a tubular casing member provided with a plurality ofradiating various length curved slots at one end, a shaving blade with aplurality of radiating shearing members revolubly mounted against theinside of said end, a torsion spring in connection with said rotor bladefor tending to turn the same, means extending outwardly of said casingfor winding said spring relatively to said blade, and governor andadjustable brake means in connection with said spring and said blade.

4. In a shaver, a tubular casing member provided with a plurality ofradiating various length curved slots at one end, a shaving blade with aplurality of radiating shearing members revolubly mounted against theinside of said end, a torsion spring in connection with said rotor bladefor tending to. turn the same, means extending outwardly of said casingfor winding said spring relatively to said blade, governor andadjustable brake means in connection with said spring and said blade,and ratchet and pawl means in operative connection with said spring.

5. In a shaver, a tubular casing provided with removable end caps, oneof said end caps provided with a plurality of curved slots, a rotaryblade revolubly mounted against the inner side of said cap over saidslots, a shaft secured centrally to said rotary blade, a ratchet wheelrevolubly mounted in the opposite end of said tubular casing against theother cap member in which the other end of said shaft is revolublymounted, ratchet pawls supported in said second mentioned cap engageablewith the ratchet teeth, anda spring secured to said shaft at one end andto said ratchet wheel'at its opposite end.

6. In a shaver, a tubular casing provided with removable end caps, oneof said end caps provided with a plurality of curved slots, a rotaryblade revolubly mounted against the inner side of said cap over saidslots, a shaft secured centrally to said rotary blade, a ratchet wheelrevolubly mounted in the opposite end of said tubular casing against theother cap member in which the other end of said shaft is revolublymounted, ratchet pawls supported in said second mentioned cap engageablewith the ratchet teeth, a spring secured to said shaft at one end and tosaid ratchet wheel .at its opposite end, and a key secured to saidratchet wheel outwardly of said cap for turning said ratchet wheel andwinding said spring.

'7. In a shaver, a tubular casing provided with removable end caps, oneof said end caps provided with a plurality of curved slots, a rotaryblade revolubly mounted against the inner side of said cap over saidslots, a shaft secured centrally to said rotary blade, a ratchet wheelrevolubly mounted in the opposite end of said tubular casing against theother cap member in which the other end of said shaft is revolublymounted. ratchet pawls supported in said second mentioned cap engageablewith the ratchet teeth, a spring secured to said shaft at one end and tosaid ratchet wheel at its opposite end, a key secured to said ratchetwheel outwardly of said cap for turning said ratchet wheel and windingand spring, and governor and brake means in connectionwith said shaftand said casing for controlling the speed of said shaft.

8. In a shaver, a tubular casing provided with removable end caps, oneof said end caps provided with a plurality of curved slots, a rotaryblade revolubly mounted against the inner side of said cap over saidslots, a shaft secured centrally to said rotary blade, a ratchet wheelrevolubly mounted in the oppositeend of said tubular casing against theother cap member in which the other end of said shaft is revolublymounted, ratchet pawls supported in said second mentioned cap engageablewith the ratchet teeth, a spring secured to said shaft at one end and tosaid ratchet wheel at its opposite end, a key secured to said ratchetwheel outwardly of said cap for turning said ratchet wheel and windingsaid spring, governor and brake means in connection with said shaft. andsaid casing for controlling the speed of said shaft, said governor meansincluding a latch shiftable longitudinally of said tubular casingengageable by said I governor means.

9. In a shaver, a casing member, a removable cap provided with aplurality of curved slots, a

plurality of openings through which the shaved hairs may be removed anda closure member having openings conforming therewith, a blade rotatablymounted within said cap member and adjacent to the end of said capmember having the curved slots and torsion spring for driving chamberwithin which the shaved hairs may be retained.

HOWARD CHESTER MCCANN.

